Finding the Fourth Proportional to 71.69, 106.76 and 71.33

Step by Step Solution

1. Step 1: Write the proportion equation
   71.69 : 106.76 = 71.33 : x
2. Step 2: Convert to fraction form
   71.69/106.76 = 71.33/x
3. Step 3: Cross multiply
   71.69x = 106.76 × 71.33
4. Step 4: Simplify right side
   71.69x = 7,614.84
5. Step 5: Solve for x
   x = 7,614.84/71.69
6. Step 6: Final answer
   x = 106.23